bnx2x: Add MBI version to ethtool driver query output.

The patch populates the MBI version in the ethtool driver query data.
Adding 'extended_dev_info_shared_cfg' structure describing the nvram
structure, this is required to access the mbi version string.
Signed-off-by: Sudarsana Reddy Kalluru <Sudarsana.Kalluru@cavium.com>
Signed-off-by: Ariel Elior <Ariel.Elior@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c

@@ -1105,11 +1105,33 @@ static void bnx2x_get_drvinfo(struct net_device *dev,
 			      struct ethtool_drvinfo *info)
 {
 	struct bnx2x *bp = netdev_priv(dev);
+	char version[ETHTOOL_FWVERS_LEN];
+	int ext_dev_info_offset;
+	u32 mbi;
 
 	strlcpy(info->driver, DRV_MODULE_NAME, sizeof(info->driver));
 	strlcpy(info->version, DRV_MODULE_VERSION, sizeof(info->version));
 
-	bnx2x_fill_fw_str(bp, info->fw_version, sizeof(info->fw_version));
+	if (SHMEM2_HAS(bp, extended_dev_info_shared_addr)) {
+		ext_dev_info_offset = SHMEM2_RD(bp,
+						extended_dev_info_shared_addr);
+		mbi = REG_RD(bp, ext_dev_info_offset +
+			     offsetof(struct extended_dev_info_shared_cfg,
+				      mbi_version));
+		if (mbi) {
+			memset(version, 0, sizeof(version));
+			snprintf(version, ETHTOOL_FWVERS_LEN, "mbi %d.%d.%d ",
+				 (mbi & 0xff000000) >> 24,
+				 (mbi & 0x00ff0000) >> 16,
+				 (mbi & 0x0000ff00) >> 8);
+			strlcpy(info->fw_version, version,
+				sizeof(info->fw_version));
+		}
+	}
+
+	memset(version, 0, sizeof(version));
+	bnx2x_fill_fw_str(bp, version, ETHTOOL_FWVERS_LEN);
+	strlcat(info->fw_version, version, sizeof(info->fw_version));
 
 	strlcpy(info->bus_info, pci_name(bp->pdev), sizeof(info->bus_info));
 }

drivers/net/ethernet/broadcom/bnx2x/bnx2x_hsi.h

@@ -1140,6 +1140,11 @@ struct shm_dev_info {				/* size */
 
 };
 
+struct extended_dev_info_shared_cfg {
+	u32 reserved[18];
+	u32 mbi_version;
+	u32 mbi_date;
+};
 
 #if !defined(__LITTLE_ENDIAN) && !defined(__BIG_ENDIAN)
 	#error "Missing either LITTLE_ENDIAN or BIG_ENDIAN definition."